Lugnut was built by spectre shortly after his recreation. He has strenghts in both brawn and brain, however on first look it doesn't seem that way. He looks like the typical hunchbacked serveant of any decepticon: strong and stupid. He uses it to his advantage, tricking the autobots into thinking he's a loose cannon with no brains. He then lures them into a trap and makes it seem like megatron is the one behind it...